Disinfectant cartridge



FIG. 1 is a right side perspective view of a disinfectant cartridge showing our new design;

FIG. 2 is front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is right side elevation view thereof;

FIG. 5 is left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a disinfectant cartridge, as shown and described. 